1. prescription (written order from an authorized medical practitioner for provision of a medicine or other treatment, such as (ophthalmology) the specific lenses needed for a pair of glasses) (medicine)

2. abandon of legal action by virtue of a statute of limitations; principle by which a person can no longer be prosecuted for a crime when a certain amount of time has elapsed (law, sometimes figuratively, figuratively)

3. prescription (act of establishing or formalizing ideal norms for language use, as opposed to describing the actual norms of such use) (linguistics)